Mohanlal in the recent times have given his dates to a bunch of upcoming directors. And, of course the star has reaped the benefits of new craftsman behind the camera in many such films like Udayananu Tharam, Tanmatra and Vadakkumnaathan. Here in Mahasamudram, he is attempting another chance for a big  contentful flick with another debutant, Dr.S.Janardhanan. A noted name in the television circuits of Kerala, Dr.S.Janaradhanan  has taken pains to present Mohanlal as a fisherman, for the  first time in his filmi career.

Here Lal is Isahak, a fisherman who has many Passions like social work and  football. Isahak falls in love with Devi and  get married  after a short love life at sea. But their married life and happiness is short lived as Devi is arrested and jailed for murder that happened on that very same night. Isahak  essentially a person good at heart is left  at shore denied the joy of spending even a day with his wife. Isahak encountered with a sea of problems turns to evil, as his life  is left astray with no reason for happiness.

It is on their fifth wedding anniversary that Isahak comes to know that Devi is being released on parole. Jagathy ,who plays the local priest is one among those whom Isahaq keep a special relation and confides at times. The news of Devi's return changes whole world of Isahaq and he plans to bring back the joyousness  of his life. But fate has much more to offer than Isahaq expected.

Innocent plays Isahak's father who becomes insane after the loss of his wife. The story deals with the various problems and troubles in Isahak's life and how they change him.

Although a lot of movies have been made on the sea shores and on the life of fishermen, Dr. S. Janardhanan says that this movie is a different attempt,  because the sea is an essential part of the film and not a mere backdrop. The crew has shot for more than ten days in the sea, filming the marriage, first night, two action sequences  involving  Mohanlal and many other turning points of the movie. Laila who debuted in Malayalam, years back joins Mohanlal as the lead lady. Scripted by the director himself, the film has a few songs set to music by M. Jayachandran. Shaji wieldes the camera for this flick . The film also features Rahman, Saikumar, Innocent, Jagthy, Santhosh, Babu Namboodhiri and Krishnaprasad.  The film is shot in the beaches of  Vizhinjam, Kollam and Alappuzha. The film which is in its final cut stage will grace the theatres as an Onam release.